Items where Year is 1923

Number of items: 31.
  • A critical enquiry into the alleged fixation of nitrogen by green algae. (1923) Bristol Roach, B. Muriel, Page, H. J.
  • Note on Dr. Burnside's recent paper on errors of observation. (1923) Aylmer Fisher, Ronald
  • Studies in crop variation. II. The manurial response of different potato varieties. (1923) Aylmer Fisher, Ronald, Mackenzie, W. A. picture_as_pdf
  • Effect of weight of seed upon the resulting crop. (1923) Brenchley, Winifred Elsie
  • The action of protozoa on bacteria when inoculated into sterile soil. (1923) Cutler, D. W.
  • The rate of reproduction in artificial culture of Colpidium colpoda. (1923) Cutler, D. W., Crump, L. M.
  • The rate of reproduction in artificial culture of Colpidium colpoda. Part II. (1923) Cutler, D. W., Crump, L. M.
  • VII.—A quantitative investigation of the bacterial and protozoan population of the soil, with an account of the protozoan fauna. (1923) Cutler, D. W., Crump, L. M., Sandon, H.
  • Biological studies of Aphis Rumicis Linn. The penetration of plant tissues and the source of the food supply of aphids I. (1923) Davidson, J.
  • XXI —on the dominance ratio. (1923) Fisher, R. A
  • On the Larval Anatomy of the Gout‐Fly of Barley (Chlorops teniopus Meig.) and two Related Acalyptrate Muscids, with Notes on their Winter Host‐Plants. (1923) Frew, J. G. H.
  • On the larval and pupal stages of Forcipomyia piceus Winn. (1923) Frew, J. G. H.
  • On the morphology of the head capsule and mouth parts of Chlorops taeniopus (Diptera). (1923) Frew, J. G. H.
  • A quantitative study of the insecticidal properties of Derris Elliptica (tuber root). (1923) Fryer, J. C. F., Stenton, R., Tattersfield, F., Roach, W. A.
  • The volume-changes associated with variations of water content in soil. (1923) Haines, W. B. picture_as_pdf
  • On the effect of wear on small mesh wire sieves. (1923) Keen, Bernard Augustus, Haines, W. B. picture_as_pdf
  • Some preliminary investigations on the relationship of protozoa to soil fertility with special reference to nitrogen fixation. (1923) Nasir, S. M.
  • Agricultural chemistry and vegetable physiology. (1923) Page, H. J.
  • The possibilities of British agriculture. (1923) Rew, H., Russell, E. J.
  • Studies in the varietal immunity of potatoes to wart disease (synchytrium endobioticum schilb., perc.) Part I: the influence of the foliage on the tuber as shown by grafting. (1923) Roach, W. A.
  • First report of the experiments on the influence of soil, season, and manuring on the quality and growth of barley. (1923) Russell, E. J.
  • The influence of geographical factors on the agricultural activities of a population. (1923) Russell, E. J.
  • Rothamsted and agricultural science. (1923) Russell, Sir Edward
  • On the apical growth of fungal hyphae. (1923) Smith, J. H.
  • The chemical properties of Derris elliptica (tuba root). (1923) Tattersfield, F., Roach, W. A.
  • On the vibration method of obtaining a suspension of the bacteria in a soil sample, developed by CL Whittles. (1923) Thornton, H. G. picture_as_pdf
  • The effect of boric acid and borax on the broad bean and certain other plants. (1923) Warington, Katherine picture_as_pdf
  • Records and problems of insect migration. (1923) Williams, Carrington Bonsor
  • The cotton plant in relation to temperature and rainfall. (1923) Williams, Carrington Bonsor
  • A froghopper damaging cacao in Panama. (1923) Williams, Carrington Bonsor
  • A short bio-climatic study in the Egyptian desert. (1923) Williams, Carrington Bonsor